Value

Meaning

HALFTONE_PRINT

Halftone for printing

HALFTONE_VIEW

Halftone for display

HALFTONE_RECT

Rectangular halftone

HALFTONE_CIRC

Circular halftone

HALFTONE_ELLIPS

Elliptical halftone

HALFTONE_RAND

Random halftone

HALFTONE_LINEAR

Linear halftone

HALFTONE_USERDEF

User defined halftone